For the First Sample Litmus Test Gives Red means It's an Acid on Adding AgNO3it gives No PPT which means that It is an Acid Which Does not make ppt with silver there are two acids given i) HCl it will give white ppt with silver nitrate to give silver chloride & ii) Acetic acid which doesn't Give ppt with silver nitrate So, Sample 1 is Acetic Acid |
For the Second Sample Litmus Test Gives Blue means It's a Base on Adding AgNO3it gives White/Yellow PPT here, there are two bases given i) NaOH it will give Brown ppt with silver nitrate & ii) Na2CO3 which will give Yellow ppt (Ag2CO3) with silver nitrate So, Sample 2 is Na2CO3 |
For the Third Sample Litmus Test Gives Blue means It's a Base on Adding AgNO3it gives Brown PPT here, there are two bases given i) NaOH it will give Brown ppt (Silver hydroxide) with silver nitrate to give & ii) Na2CO3 which will give Yellow ppt So, Sample 3 is NaOH |
For Four Sample Litmus Test Gives Red means It's an Acid on Adding AgNO3it gives White ppt It is an Acid Which Does not make ppt with silver there are two acids given i) HCl it will give white ppt (AgCl) with silver nitrate to give silver chloride & ii) Acetic acid which doesn't Give ppt with silver nitrate So, Sample 4 is HCl |
Identify an unknown solution (1, 2, 3 and 4) and fill the vacancies in the table...
Identify an unknown solution (1, 2, 3 and 4) and fill the vacancies in the table Procedure The unknown solutions are : HCl, NaOH, Acetic acid, Na2CO3 Test each solution with litmus paper. Record the results in the data table below. Take little of each solution in a test tube and add 5 drops of silver nitrate to each solution. Record the results in the data table. Take little of each solution in a test tube and add two drops...
DATA TABLE STEP 1 AgNO3 1,C,,2 STEP 3 Ba(NO3)2 SO - Decant white BaSO4 ppt (CONFIRMS SO2-) yellow Agl. AgCl ppt NH,OH yellow Agl. AgCl ppt RECYCLE Chemical Waste HNO blue litmus Decant white AgC ppt (CONFIRMS CT) yellow Agl.ppt (CONFIRMST) red spot 6. Refer to the Data Table to determine which anions (I-, Cl-, SO42-) are present and absent in an unknown solution given the following observations. • The unknown solution in test tube #1 plus AgNO3 gives a...
please, I need assistance with this Laboratory Report on the periodic table. Part A 1. Place 9 clean small test tubes in a test tube rack. The test tubes should be clean but do not have to be dry because aqueous solutions will be used. 2. To cach test tube add 5 drops of the solution (0.1 M) indicated in the data table. 3. Next add 5 drops of silver nitrate (0.5 M) to each of the 9 test tubes....
EXPERIMENTAL PROCEDURE: GROUP I CATIONS Test a known solution that contains all 3 cations simultancously with your unknown. Follow the same procedure (separately) for both the unknown and known solutions. Wear gloves during all procedures. STEP 1: Precipitation of Group I. To 10 drops (only!) of the solution to be analyzed, add 2 drops 6 M HCl. Stir well. Centrifuge and decant the solution (S1) from the ppt (P1). Treat the ppt Pl according to Step 2. (There is no...
post lab questions? 2. The instructions for Solution IV describe the preparation of a buffer solution. a. Calculate the pH of this buffer solution if it has an equal concentration of NHs and NH4 b. Does this solution buffer in the acidic, basic, or nearly neutral pH range? Explain. c. Explain why it is necessary to provide a buffer solution at this point in the procedure. Solution IV Add 2 drops NH.CI solution and check the pH of the solution...
I just need help with the calculations for table 4! Laboratory Experiments 177 Perform an additional titration as in Part I, except use 3 drops of methy! red indicator instead of the phenolphthalein indicator. Record your data in Table 3 PART 2 PROCEDURE 2. Perform an additional titration as in Part 1, except use 3 drops of the phenolphthalein indicator. veto-…sc Record your data in Table 3. orontimol yellow TABLE3 Titration Data for Different Indicators, Part 2 Phenolphthalein indicator (already...
Part C. Benedict's Test. Test Tube Samp Prediction Observations Results (+ or -) 2-hydroxybutanal Benzaldehyde Propanone Cyclohexanone Unknown Part D. Iodoform Test. Test Sample Tube 1 2-hydroxybutanal Prediction Observations Results (+ or -) Benzaldehyde Propanone Cyclohexanone Unknown Experiment 12 Identification of Aldehydes and Ketones O the b e t theader of each holding your breath as a st beward your nose. Record the derson the specified memes from O Ta Test g shes between ones that contain a methyl group...
RESULTS: Exercise 1: Qualitative Anion Tests Data Table 1. Anion Confirmation Tests. Chemical Anion Addition of AgNO3 Addition of HCl NaBr Bromide It became white and cloudy Still was white and cloudy Na2CO3 Carbonate Clear inside white and cloudy around the outside Still white and cloudy but bubbles start to form. NaCl Chloride Turn white cloudy on bottom clear on top Still white cloudy on bottom clear on top NaI Iodide In the middle very dark and cloudy fades out...
Part A. pH estimation and explanation There are three methods to determine pH (Table 4). For litmus strips, red litmus paper turns blue in basic solution but stays red in acidic solution, while blue litmus paper turns red in acidic solution but stays blue in basic solutions. For the liquid universal indicator and pH 1-14 test papers, compare its color with the scale provided on the package to determine pH. When using litmus strips and pH 1-14 paper, use a...
please answer number 5 5. The AgNO3 test solution was not used to test the water insoluble but acid soluble unknowns, only the NaOH and Na2CO3 were used. Propose a reason why the AgNO3 was not used in part 3 of the experiment. Discussion/Conclusion (continue on the back of this page if needed) UTA-705 out each test tube at the sink with soap and water using a tes water and then analytical grade water (twice) and reuse the tu water...